Who was the first person to see cells under the microscope and give them name a Robert Hooke b Theodor Schwann c Anton van Leeuwenhoek d Matthias Schleiden

Answers

Answer 1

Answer:

a) Robert Hooke

Explanation:

The cell was first discovered by Robert Hooke in 1665, which can be found to be described in his book Micrographia. In this book, he gave 60 'observations' in detail of various objects under a coarse, compound microscope.

Answer 2

The first person to observe the cell under the microscope is Robert Hooke, who is present in Option a. Robert Hooke is the person who first observed cork cells under the microscope and gave them a name. Option a is correct

What is a cell?

In the early stages of the earth, cells were not as developed as those of today's eukaryotes; they had RNA as genetic material, and later by evolution, today's eukaryotic cells developed. Those RNA-containing cells were extremely susceptible to mutation, whereas today's DNA-containing cells are not.

The eukaryotic cell contains numerous organelles that perform various functions, such as the lysosome, which degrades pathogens, the chloroplast of plants, which perform photosynthetic reactions, the nucleus of eukaryotic cells, which conserves DNA, and the mitochondria, which generate energy through cellular activities.

Hence, the first person to observe the cell under the microscope is Robert Hooke and gave them a name, who is present in Option a.

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Related Questions

As an ecologist looks at a lush, green ecosystem with lots of different kinds of grass, plants, trees, and shrubs, they would say that there was a high level of biodiversity in that ecosystem. Why would they say that? What would lead them to think that? (think in terms of producers and consumers...)

Answers

Answer:

Based on the flow of energy form the lower order to the higher order will e more in a biological diverse ecosystem.

Explanation:

An ecologist looking at the lush green ecosystem with different types of trees and plants suggests that its a healthy vegetation and thus has a high level of biodiversity.  Due to the abundance availability of a good amount of sunlight, and water and rich quality of soil form the terms of producers and form the consumers i.e herbivorous animals the high quality of grass and green leaves to feed on.This would lead to high growth and development of the herbivorous animal. And similar for the carnivorous animals would get a good amount of prey.

When a dishonest scientist reports false information, he or she:___________
A) as in many other professions, will be excused by the scientific community.
B) gets no second chance in the scientific community.
C) is elevated in the scientific community.

Answers

Answer:

B) gets no second chance in the scientific community.

Explanation:

As a scientist Reporting false information has serious consequences in the scientific world. This is because fakery affects science negatively and it reduces the trust that people have on science and in research. It also reduces peoples ability to make choices based on researched evidences. As a way to fight against false information and fake science, a scientist who reports false information would not get a second chance in the science community.

What do cell theory and germ theory have in common?

Answers

Germ theory states that certain diseases are caused by the invasion of the body by microorganisms, organisms to small to be seen except through a microscope. The cell theory states that living things are composed of one or more cells, that the cell is the basic unit o life, and that cells arise from preexisting cells. The theories are similar because germ theory states that disease is caused by living organisms.


Hope this helps :)

What is the expected result when the end product of a metabolic pathway binds to an enzyme in that pathway?

Answers

Answer:

Feedback inhibition.

Explanation:

It is feedback inhibition pathway because it is a cellular control process in metabolic part wat in which the output of a metabolic pathway binds to an enzyme at the regulatory sites which is distinct from the active sites of the substrates, causing a conformational changes on the enzyme which then makes it to slow down or inhibit it's production or synthesis.

This help to prevents excess of the high levels of the product from accumulating in the cell

2.) From where do lion cubs get their chromosomes? How does this happen to produce the pattern that you see?​

Answers

Answer:

This question is incomplete

Explanation:

This question is incomplete.

However, lions have 38 chromosomes (19 pairs) and there cubs get their chromosomes from there parents; with each parent donating 19 each. They also have a pair of chromosomes known as sex chromosomes (X and Y). The female always donates the X chromosome and the male donates either a X (which leads to a female cub) or a Y (which leads to a male cub), just like in many mammals.

NOTE: Chromosomes are threadlike structures in the nucleus of a cell that carry/stores genetic materials/genes.

2. Coca-Cola tested a version of Diet Coke containing a new type of
flavoring. Cans without the new flavoring were given to 500 test subjects
in group A, and cans with the new flavoring were given to 500 subjects in
group B. In this experiment, the individuals in group B served as the
0 a. dependent variable
O bf control group
c. experimental group
O d. independent variable

Answers

Answer:

i would probably go with A or c

How does air move in a high pressure system? *

Answers

It slowly gets compressed so I guess you can say it moves slowly as the space gets compressed

Marian is crushing cookies to use as an ice cream topping. She has 450 grams of cookie crumbs when she is finished. According to the law of conservation of mass, what was the mass of the cookies when they were whole?

Answers

Answer: 550 grams

Explanation: the whole cookie would weigh more than the crumbs

How did large organic molecules form without the presence of enzymes?

Answers

Answer:

Hey there!

Because of the high temperatures, small organic compounds were able to bond together to form large organic compounds. For example, in certain experiments, amino acid chains were created in a method of evaporation from high temperatures.

Let me know if this helps :)

If water was removed from reaction depicted above which of the following describes the most likely outcome of this removal

Answers

Answer:

The reaction will not occur.

Explanation:

If water was removed from reaction so the reaction will not occur or take place because water is a raw material in this reaction which will react with other atom or molecule forming new products. Example of such type of reaction are photosynthesis and formation of acid and base. In the process of photosynthesis, water is a raw material react with carbondioxide forming glucose and oxygen whereas water react with salt produces acid and base. Both of these reactions are impossible without water.

What process do plants use to remove carbon dioxide from the air?

Answers

Answer:

Photosynthesis removes carbon dioxide naturally

Explanation:

trees are especially good at storing carbon removed from the atmosphere by photosynthesis

Which best describes biotechnology? the process of analyzing DNA samples to identify individuals involved in criminal activities DNA made by connecting fragments of DNA with desired traits from different DNA sources the field of biology that uses genetic engineering to produce crops, pharmaceuticals, and enzymes for use in industry and manufacturing the process of cutting DNA into fragments and inserting the fragments with a desired gene into another organism​

Answers

Answer:

the exploitation of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones, etc.

Answer: The correct answer is- a field of biology that makes the use of genetic engineering in order to produce crops, pharmaceuticals, and enzymes that are used in industry as well as manufacturing processes.

Biotechnology can be described as the manipulation of life forms or their components so as to produce useful commercial products such as crops that are resistant to pest, pharmaceuticals, useful enzymes. The manipulation is done using genetic engineering.  

As a result of new products, advancement is made in the form of increased yield of crop, medicinal breakthrough or improvement in health.          

The carbon cycle includes processes that release carbon into the atmosphere and places that act as carbon reservoirs. The diagram below shows both major processes that release carbon and major carbon reservoirs. Which of these disruptions would cause an excess output in the carbon cycle?
A. The destruction of terrestrial biota.
B. Increases in marine biota.
C. A reduction in the use of fossil fuels.
D. A thickening of ocean sediments.

Answers

Answer:

A

Explanation:

The destruction of terrestrial biota cause an excess output in the carbon cycle.

What are the features of carbon cycle?

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, geosphere, hydrosphere, and atmosphere of the Earth.

The carbon cycle is vital to life on Earth. Nature tends to keep carbon levels balanced, meaning that the amount of carbon naturally released from reservoirs is equal to the amount that is naturally absorbed by reservoirs.

Plants constantly exchange carbon with the atmosphere. Plants absorb carbon dioxide during photosynthesis and much of this carbon dioxide is then stored in roots, grasslands, and forests.

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Which principle tells you how rock layers are laid?
A. Correlative dating
B. Original horizonality
ООО
C. Faunal succession
D. Uniformitarianism

Answers

Answer:

B. Original horizonality

Explanation:

You are welcome<3

The original horizontality principle tells you how rock layers are laid.

What does original horizontality mean?

The law of original Horizontality suggests that each rock layers are at the beginning laid down (deposited) horizontally and may later be deformed.

What is an example of the law of Original Horizontality?

The precept of original horizontality states that sediment is deposited horizontally. Which is once in a while easier to check with liquids: believe pouring water into a cup. The surface of the water is perfectly flat - horizontal. in case you dump that water into a bowl, the surface stays flat.

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What are some of the dangers that volcanoes pose to human populations?

a. destruction of property from lava flow

b. destruction from mud flows

C. lung problems from ash and toxic gases

d. all of the above

Please select the best answer from the choices provided
A
B
С
D

Answers

Pretty sure it’s D. Hope that helps! Correct me if I’m wrong!

Answer:

its d

Explanation:

Why must the cell move things in and out of it?

Answers

Answer:

Moving things in and out of the cell is an important role of the plasma membrane. It controls everything that enters and leaves the cell. There are two basic ways that substances can cross the plasma membrane: passive transport, which requires no energy; and active transport, which requires energy.

What is the scientific process?
O A. A way to avoid difficult problems
B. A series of random science discoveries
C. A group of logical science questions
D. A formal method used to answer scientific questions
SUB

Answers

The answer is D. A formal method used to answer scientific questions. I just did this test

The best graph to use when showing “continuous” data is?

Answers

Answer:

Histogram

Explanation:

They show the distribution of the values.

• Water molecules attracted to other _____________ molecules (because of their polarity and hydrogen bonds)

Answers

Answer:

Water molecules attracted to other water molecules (because of their polarity and hydrogen bonds)

Explanation:

Difference between fungi nd bacteria???????​

Answers

Answer:

All bacteria are prokaryotes. All fungi are eukaryotes.

Explanation:

Answer:

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1. Analyze Graphs What trend in the monarch population does the graph show?

Answers

Answer:

Let's analyze the graph.

we can see that in 1995, the total area occupied was around 8 he.

Then we have a steep increase, reaching a maximum in the year 1997, where the area occupied was 20 he.

After that the area decreases abruptly and remains (varying a little from year to year) around 5he

Now we can look at the year 2006, that year the area was around 5he, ut after that we can see an almost constant decrease in the area, where each year (except from 2010 to 2011) the area decreased.

Ending in 2014 near 1 or 2 hectares.

The conclusion that we can take from this graph is that, while some years ao the area fluctuated around some values, in recent years we can see a clear decrease in the area ocuppied by the Overwintering Monarchs.

Plz Help! 20. Neutrons and _________________ are found in the nucleus of an atom.

Answers

Answer: Protons

Explanation: Protons and Nuetrons are found in the Nucleus of a atom

Which most accurately describes the basis of the scientific method

Answers

Answer:

Any Picture

Explanation:

or Answers to choose from?

Answer:d

Explanation:

Both plant and animal cells contain -
A. mitochondria, cell membrane, and chloroplasts.
B. a cell membrane, cytoplasm, and nucleus.
C a cell membrane, cell wall, and nucleus.
D. mitochondria, a cell wall, and chloroplasts.

Answers

A cell membrane cell wall and nucleus. I think

Both plant and animal cells  contain a cell membrane, cytoplasm and nucleus because animal cell does not contain cell wall and plant cell have cell wall but both of the cell contain cell membrane, cytoplam and nucleus.Thus option B is correct.

What is the difference between plant and animal cell?

Plant cell consist cell wall but in animal cell, cell wall is absent. Nucleus is present in both of the cell. animal cell does not contain cell wall and plant cell have cell wall but both of the cell contain cell membrane, cytoplam and nucleus.

The main function of vacuoles present in plant cell as it help in storage of waste materials in a plant cell and maintain a proper pressure in a plant cell.

Both plant and animal cells  contain a cell membrane, cytoplasm and nucleus because animal cell does not cotain cell wall and plant cell have cell wall but both of the cell contain cell membrane, cytoplam and nucleus.Thus option B is correct.

There are various differences are found in plant and animal cell. The very first difference is shape of the cell, plant cell is square or rectangular in shape but animal shape is irregular in shape.

Plant cell consist cell wall but in animal cell, cell wall is absent. Nucleus is present in both of the cell.

The main function of vacuoles present in plant cell as it help in storage of waste materials in a plant cell and maintain a proper pressure in a plant cell.

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Why are giraffe necks not perfectly suited for their function?

Answers

Answer:

Like all mammals, giraffes only have 7 vertebrae in their necks which limits their flexibility.

What is one purpose of a data table?

Answers

Answer:

to keep track of a lot of data.

Is “if it is cloudy, then it will rain” a hypothesis or prediction?

Answers

prediction! hypothesis consists of very little evidence. kind of like a guess

Veronica got a cut on her arm, and it started bleeding. Her circulatory system started working hard to prevent blood loss and protect against infection. Which two components of the blood were functioning at a higher level than normal? platelets and plasma plasma and red blood cells white blood cells and platelets red blood cells and white blood cells

Answers

C. White Blood Cells and Plasma

Plasma to prevent blood loss
White Blood Cells to prevent infection

According to the question, the two components of the blood that were functioning at a higher level than normal are white Blood Cells and platelets. Thus, the correct option is C.

What are the components of blood?

The components of blood may generally include red blood cells, white blood cells, plasma, and platelets. Blood generally performs the function of transporting oxygen and nutrients throughout the body.

While these components play specific roles in making the conditions suitable for an individual's survival. For example, platelets cluster together to form a clot and prevent bleeding at the site of an injury.

While red blood cells govern the function of hemoglobin, white blood cells are involved in fighting infectious diseases. They are also known as the soldiers of the body.

Therefore, the two components of the blood that were functioning at a higher level than normal are white Blood Cells and platelets. Thus, the correct option is C.

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The picture below illustrates a monomer that makes up DNA.
0
N
Base
0=P-0–CH,
0
Sugar
Which of the features of this carbon-based macromolecule can be used to distinguish it
from the other biological molecules?

NEEDS HELP ASAP PLEASE HELP ME

Answers

Glucose or a sugar, has a ring of carbon atoms and one oxygen atom features of this carbon-based biomolecule can be used to distinguish it from the other biological molecules

What are different types of biomolecules ?

Biomolecules are the primary building block of the living cell such as  Carbohydrates, Proteins, Fats, Nucleic Acids; Carbohydrates are polyhydroxy aldehydes or ketones collectively called as saccharides.

It can be monosaccharide made up of single sugar molecule like glucose, fructose or polysaccharide made up of many sugars like cellulose, starch.

Proteins are polymers of amino acids, structurally can be classified into primary, secondary, tertiary and quaternary protein.

Nucleic acids are up two types namely, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), DNA carry the genetic material which can be transferred to RNA by transcription and then to protein by the process of translation.

The basic components of nucleic acids are composed of a nitrogenous base, pentose sugar, and phosphate.

Lipids are organic and water insoluble substance, soluble only in non-polar solvent, they include sterols, fat-soluble vitamins, mono-, di- or triglycerides, phospholipids, etc.

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FILL IN THE BLANK .
The close relationship that exists when two or more species live together is called _______ .

Answers

Answer:

The answer is Symbiosis

Answer:

It is symbiosis I got it right I hope you though im failing so

Explanation:

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